242973556229 has 2 divisors, whose sum is σ = 242973556230. Its totient is φ = 242973556228.

The previous prime is 242973556219. The next prime is 242973556247. The reversal of 242973556229 is 922655379242.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174068356225 + 68905200004 = 417215^2 + 262498^2 .

It is a cyclic number.

It is not a de Polignac number, because 242973556229 - 2¹⁶ = 242973490693 is a prime.

It is a super-2 number, since 2×242973556229² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242973556219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121486778114 + 121486778115.

It is an arithmetic number, because the mean of its divisors is an integer number (121486778115).

Almost surely, 2^242973556229 is an apocalyptic number.

It is an amenable number.

242973556229 is a deficient number, since it is larger than the sum of its proper divisors (1).

242973556229 is an equidigital number, since it uses as much as digits as its factorization.

242973556229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16329600, while the sum is 56.

The spelling of 242973556229 in words is "two hundred forty-two billion, nine hundred seventy-three million, five hundred fifty-six thousand, two hundred twenty-nine".